Investigation of plasmonic effects on the metal nanoparticle arrays for biosensor applications

2nd International Conference on Mining, Material and Metallurgical Engineering

矿业工程;材料科学;冶金学

Chou Chau, Yuan-Fong^1

Centre for Advanced Material and Energy Sciences, Universiti Brunei Darussalam, Tungku Link, Gadong, Negara

BE1410, Brunei^1

关键词: 3D Finite Element Method (FEM);    Biosensor applications;    Metal nanoparticle arrays;    Near-field intensity;    Optical performance;    Plasmonic biosensors;    Resonance wavelengths;    Two Dimensional (2 D);   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/191/1/012016/pdf
DOI  :  10.1088/1757-899X/191/1/012016

学科分类：材料科学（综合）

来源: IOP

【 摘 要 】

Surface plasmon resonance (SPR) on the near field intensity of a two-dimensional (2-D) periodic arrays of bowtie-shape metal nanoparticle (MNP) pairs using the 3-D finite element method (FEM) for biosensor applications are investigated. The peak resonance wavelength can be shifted to red as the filling core media in bowtie-shape MNP pairs have been changed. The tunable and highly sensitive SPR modes are observed due to the hybridization SPR effects. Simulation results show that the peak resonance wavelength (λres) can be spread in the full wavelength range of 300-1600 nm when the tip edges and different filling media in structure are taken into account. The highly sensitive optical performances give us a qualitative idea of the geometrical and material properties of the periodic array of bowtie-shape MNP pairs on SPRs that can be as a promising candidate for plasmonic biosensor applications.